GitLab

BUG=chromium-os:18665,chromium-os:18702
TEST=Should see createAccount/guestSignin links to the right of the gaia signin iframe. chrome://settings/accounts has checkboxes to control the visibility of these links. Clicking these links should work as you'd expect.
Review URL: http://codereview.chromium.org/7497060

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@96232 0039d316-1c4b-4281-b951-d872f2087c98